[asterisk-users] Asterisk stops responding to SIP/ZAP

[Ken Williams]

About once a week or so my Asterisk box stops responding to all phones.
I can pull up the console, do whatever I want at the CLI but the only
way to get things working again is to restart Asterisk altogether.
 
I finally cranked verbose & debugging way up (and watched my log files
go from 1mb/day to 100mb/day), but below I believe contains my problem.
The next line is 1.5 minutes later where I restart Asterisk.
 
SIP/701 is a Grandstream GXP-2000 phone (we have about 30 of them in
place here).  Zap/3-1 is a Digium TDM400.  
 
I can't quite figure out where my problem is, is it the initial
exception, is it not getting hung up completely, does it have to do with
the call limit on the SIP channel, perhaps 'no provider found'
statements?
 
Any help would be appreciated, I have a relatively simple dial-plan, I
can send over relevant bits of it if necessary.
 
Thanks,
Ken
 
[Apr 19 13:51:13] DEBUG[27722] chan_zap.c: Exception on 12, channel 3
[Apr 19 13:51:13] DEBUG[27722] chan_zap.c: Got event On hook(1) on
channel 3 (index 0)
[Apr 19 13:51:13] DEBUG[27722] chan_zap.c: disabled echo cancellation on
channel 3
[Apr 19 13:51:13] DEBUG[27722] channel.c: Didn't get a frame from
channel: Zap/3-1
[Apr 19 13:51:13] DEBUG[27722] channel.c: Bridge stops bridging channels
SIP/701-08ee6120 and Zap/3-1
[Apr 19 13:51:13] DEBUG[27722] channel.c: Hanging up channel 'Zap/3-1'
[Apr 19 13:51:13] DEBUG[27722] chan_zap.c: zt_hangup(Zap/3-1)
[Apr 19 13:51:13] DEBUG[27722] chan_zap.c: Hangup: channel: 3 index = 0,
normal = 12, callwait = -1, thirdcall = -1
[Apr 19 13:51:13] DEBUG[27722] chan_zap.c: disabled echo cancellation on
channel 3
[Apr 19 13:51:13] DEBUG[27722] chan_zap.c: Set option TDD MODE, value:
OFF(0) on Zap/3-1
[Apr 19 13:51:13] DEBUG[27722] chan_zap.c: Updated conferencing on 3,
with 0 conference users
[Apr 19 13:51:13] VERBOSE[27722] logger.c: -- Hungup 'Zap/3-1'
[Apr 19 13:51:13] DEBUG[27722] devicestate.c: Notification of state
change to be queued on device/channel Zap/3-1
[Apr 19 13:51:13] DEBUG[27722] pbx.c: Spawn extension
(from-internal,201,2) exited non-zero on 'SIP/701-08ee6120'
[Apr 19 13:51:13] VERBOSE[27722] logger.c: == Spawn extension
(from-internal, 201, 2) exited non-zero on 'SIP/701-08ee6120'
[Apr 19 13:51:13] DEBUG[27722] pbx.c: Launching 'Hangup'
[Apr 19 13:51:13] VERBOSE[27722] logger.c: -- Executing
[h at from-internal:1] Hangup("SIP/701-08ee6120", "") in new stack
[Apr 19 13:51:13] DEBUG[27722] pbx.c: Spawn extension
(from-internal,h,1) exited non-zero on 'SIP/701-08ee6120'
[Apr 19 13:51:13] VERBOSE[27722] logger.c: == Spawn extension
(from-internal, h, 1) exited non-zero on 'SIP/701-08ee6120'
[Apr 19 13:51:13] DEBUG[27722] channel.c: Hanging up channel
'SIP/701-08ee6120'
[Apr 19 13:51:13] DEBUG[27722] chan_sip.c: Hangup call SIP/701-08ee6120,
SIP callid fb118a6415d13a1e at 10.200.26.101)
[Apr 19 13:51:13] DEBUG[27722] chan_sip.c: Updating call counter for
incoming call
[Apr 19 13:51:13] DEBUG[27722] chan_sip.c: Call from peer '701' removed
from call limit 6
[Apr 19 13:51:13] DEBUG[27722] devicestate.c: Notification of state
change to be queued on device/channel SIP/701
[Apr 19 13:51:13] DEBUG[27722] devicestate.c: Notification of state
change to be queued on device/channel SIP/701-08ee6120
[Apr 19 13:51:13] DEBUG[20432] devicestate.c: No provider found,
checking channel drivers for Zap - 3
[Apr 19 13:51:13] DEBUG[20432] devicestate.c: Changing state for Zap/3 -
state 0 (Unknown)
[Apr 19 13:51:13] DEBUG[20432] devicestate.c: No provider found,
checking channel drivers for SIP - 701
[Apr 19 13:51:13] DEBUG[20432] chan_sip.c: Checking device state for
peer 701
[Apr 19 13:51:13] DEBUG[20432] devicestate.c: Changing state for SIP/701
- state 1 (Not in use)
[Apr 19 13:51:13] DEBUG[20432] devicestate.c: No provider found,
checking channel drivers for SIP - 701
[Apr 19 13:51:13] DEBUG[20432] chan_sip.c: Checking device state for
peer 701
[Apr 19 13:51:13] DEBUG[20432] devicestate.c: No provider found,
checking channel drivers for SIP - 701
[Apr 19 13:51:13] DEBUG[20432] chan_sip.c: Checking device state for
peer 701
[Apr 19 13:51:13] DEBUG[20432] devicestate.c: Changing state for SIP/701
- state 1 (Not in use)
[Apr 19 13:51:13] DEBUG[20432] devicestate.c: No provider found,
checking channel drivers for SIP - 701
[Apr 19 13:51:13] DEBUG[20432] chan_sip.c: Checking device state for
peer 701
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